Resistors
Thread Starter
Member
Joined: Apr 2005
Posts: 36
Likes: 0
I feel bad starting a new topic but rezman closed my other one before tibby01 could answer my question. Anyways I'm about to solder all the wires together but I dont know what side of the resistor is + and what side is - .
My resistor has a gold, brown, brown, red stripe. In that order, so is the gold stripe + or the red?
My resistor has a gold, brown, brown, red stripe. In that order, so is the gold stripe + or the red?
Senior Member
Joined: Jul 2001
Posts: 838
Likes: 0
Resistors has no polarity; they can be installed either way.
So to know what resistor you got, you check the first 2 bands, which gives you 2 digits. Brown = 1 and black = 0, so above, we got 10. The 3rd band is red; red as a multiplier is x100.
The 4th band is Tolerance. Red means the resistor is within 2%; Gold means the resistor is within 5% of being dead-on accurate. Silver being within 10% and no color band being within 20%
If there's a 5th band, it's a quality band.
Your resistor is a 210 ohm resistor (red = 2, brown = 1, brown = 10 as a multiplier) with a 5% tolerance.
So to know what resistor you got, you check the first 2 bands, which gives you 2 digits. Brown = 1 and black = 0, so above, we got 10. The 3rd band is red; red as a multiplier is x100.
The 4th band is Tolerance. Red means the resistor is within 2%; Gold means the resistor is within 5% of being dead-on accurate. Silver being within 10% and no color band being within 20%
If there's a 5th band, it's a quality band.
Your resistor is a 210 ohm resistor (red = 2, brown = 1, brown = 10 as a multiplier) with a 5% tolerance.
Senior Member
Joined: Jul 2001
Posts: 4,828
Likes: 0
From: Winnipeg